Two sides ^@AB^@ and ^@BC,^@ and the median ^@AD^@ of ^@ \triangle ABC^@ are correspondingly equal to the two sides ^@PQ^@ and ^@QR,^@ and the median ^@PM^@ of ^@\triangle PQR.^@ If ^@AB = 9 \space cm, AD = 6 \space cm,^@ and ^@AC = 7 \space cm,^@ then the length of ^@ PR^@ is:
There is a circular park of radius 25 meters. Three friends Max, Thea, and Maria are sitting at equal distance on its boundary each having a toy telephone (connected using strings) in their hands to talk to each other. Find the length of the string between a pair of the telephones.
There is a rectangle ABCD, with sides AB = CD = 40, and sides and BC = DA = 42. The rectangle is rotated 90° clockwise about C, then rotated 90°clockwise about the new location of the point that D after the first rotation. What is the length of the path traveled by point A?